Individual provider Active NPI

Casey Leeann Ernfelt, MSN, AGACNP-BC

  • Gerontology Nurse Practitioner
  • Nashville, TN
National Provider Identifier
1386539294
Registry record updated Dec 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gerontology Nurse PractitionerTaxonomy code 363LG0600X
License
39921 Issued in TN
Practice address
3601 The Vanderbilt Clinic
Nashville, TN 37232-0001
Phone
(615) 322-5000
NPI assigned
Jun 11, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 17, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Gerontology Nurse Practitioner 363LG0600X 39921 TN Primary
Critical Care Medicine (Anesthesiology) Physician 207LC0200X 39921 TN
Acute Care Nurse Practitioner 363LA2100X 39921 TN

Addresses

Primary practice location

3601 The Vanderbilt Clinic
Nashville, TN 37232-0001

Mailing address

3841 Green Hills Village Dr
Suite 200
Nashville, TN 37232-0004

Other practice location 1

1211 Medical Center Dr
Nashville, TN 37232-0004
Phone (615) 322-5000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251118002482 TN Practitioner - Nurse Practitioner 7214428127 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Vanderbilt University School of Medicine, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Vanderbilt University Medical CenterGroup PAC ID 5092023416, 3,510 clinicians

Practice addresses (Care Compare)

1301 Medical Ctr Dr
Nashville, TN 37232-0028
Phone (615) 322-5000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science - Nursing

State licenses

LicenseStateTypeSpecialty
39921TNMDCritical Care Medicine (Anesthesiology) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Vanderbilt University Medical Center CurrentSince Dec 4, 2025 Accepting new patients

Locations

Dept A T 40379
Atlanta, GA 31192

3841 Green Hills Village Dr
Ste 200
Nashville, TN 37215
Phone (615) 322-6842

719 Thompson Ln
Nashville, TN 37204
Phone (615) 322-6485

1211 Medical Center Dr
Nashville, TN 37232
Phone (615) 322-0160

1301 Medical Center Dr
Nashville, TN 37232
Phone (615) 343-4882

Interoperability endpoints

  • Direct secure messaging: cernfelt451863@direct.vumc.org

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1749600000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765929600000",
    "number": "1386539294",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3841 GREEN HILLS VILLAGE DR",
            "address_2": "SUITE 200",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372320004",
            "fax_number": "615-322-5048"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3601 THE VANDERBILT CLINIC",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372320001",
            "telephone_number": "615-322-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1211 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Nashville",
            "state": "TN",
            "postal_code": "372320004",
            "country_code": "US",
            "telephone_number": "615-322-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ERNFELT",
        "first_name": "CASEY",
        "middle_name": "LEEANN",
        "credential": "MSN, AGACNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-11",
        "last_updated": "2025-12-17",
        "certification_date": "2025-12-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "TN",
            "license": "39921",
            "primary": true
        },
        {
            "code": "207LC0200X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Critical Care Medicine",
            "state": "TN",
            "license": "39921",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TN",
            "license": "39921",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Nashville, TN

Sources for this page

Verify at the official NPI Registry.